BIO 201- Exam 1- Ch. 1-6- Rio Salado Questions & Answers 100% Correct!!
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BIO 201-- Ch. 1-6- Rio Salado
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BIO 201-- Ch. 1-6- Rio Salado
*Chapter 1* - ANSWER
Principle of Complementarity - ANSWERThe function of the body reflects the anatomical structures
Levels of Organization that make up the human body - ANSWER1. Chemical
2. Cellular
3. Tissue
4. Organ
5. Organ System
6. Organismal
Chemical - ANSWERAtoms combine to ...
BIO 201- Exam 1- Ch. 1-6- Rio Salado
Questions & Answers 100% Correct!!
*Chapter 1* - ANSWER
Principle of Complementarity - ANSWERThe function of the body reflects the
anatomical structures
Levels of Organization that make up the human body - ANSWER1. Chemical
2. Cellular
3. Tissue
4. Organ
5. Organ System
6. Organismal
Chemical - ANSWERAtoms combine to form molecules
Cellular - ANSWERCells are made of molecules
Tissue - ANSWERConsist of similar types of cells with a common function
Organ - ANSWERMade up of different types of tissue
Organ System - ANSWERDifferent organs that work together
Organismal - ANSWERThe human is made up of different types of organ systems
List the 11 organ systems - ANSWERIntegumentary system, Skeletal system,
Muscular system, Nervous System, Endocrine system, Cardiovascular system,
Lymphatic system/immunity, Respiratory system, Digestive system, Urinary system,
Male/Female Reproductive system
Integumentary system - ANSWERHair, skin and nails. Sweat and oil glands.
Synthesizes vitamin D. Protects deeper tissues from damage. Site of cutaneous
receptors (pain, pressure, etc).
Skeletal system - ANSWERProtects and supports body organs, stores minerals,
provides a framework for muscles to use for movements, and blood cells are formed
within bone.
Muscular System - ANSWERAllows manipulation of the environment, locomotion,
facial expression, and produces heat.
Nervous system - ANSWERcontrol system of the body- responds to external and
internal changes by activating the right muscles and glands.
, Endocrine system - ANSWERsecretes hormones that regulate growth process and
nutrient usage by body cells.
Cardiovascular system - ANSWERpumps blood; blood vessels transport blood which
contains carbon dioxide, nutrients, waste, etc.
Lymphatic system - ANSWERImmunity; picks up fluid leaked from blood vessels and
returns it to the blood, disposes of debri in the lymphatic vessels, houses white blood
cells (lymphocytes) for immunity.
Respiratory system - ANSWERKeeps blood constantly oxygenated and removes
carbon dioxide, and gaseous exchanges occur in the walls of air sacs within the
lungs.
Digestive System - ANSWERBreaks down food into absorbable units that enter the
blood for distribution to body cells.
Urinary System - ANSWEREliminates nitrogenous waste from body; regulates water,
electrolyte and acid-base balance of the blood.
Reproductive System - ANSWERProduction of offspring
Positive Feedback mechanisms - ANSWERPositive feedback is when a system
tends to increase output. The product of a reaction influences or increases the
forward direction of the system: in positive feedback systems the presence of a
product (or signal) results in an increase in the production (amplification) of that
product (or signal).
Ventral (anterior) - ANSWERToward of at the front of the body; in front of
Dorsal (posterior) - ANSWERBack of the body; behind
Medial - ANSWERat or towards midline of body; on the inner side of
Lateral - ANSWERaway from midline; on the outer side of
Positive feedback example:
One common example of positive feedback is the network effect, where more
people are encouraged to join a network the larger that network becomes. The result
is that the network grows more and more quickly over time.
Negative feedback mechanisms - ANSWERNegative feedback is when a system
tends to reduce output or the product prevent the reaction from continuing: negative
feedback (or feedback inhibition) systems, where the presence of a product of the
system results in a decrease in the production of that product.
Negative feedback example:
* Neurons in the hypothalamus secrete thyroid releasing hormone (TRH), which
stimulates cells in the anterior pituitary to secrete thyroid-stimulating hormone (TSH).
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